Originally Posted by
Tojara
For 10 man I had no problems doing 2H frost stat weights from the beginning of progression with barely over 510 gear right up until I killed heroic Lei Shen almost two months ago. You'll get more damage out of crit at a certain point, but I still probably wouldn't gem it. For somebody who does both tank/DPS and doesn't want to change gems/reforges around a lot, hit/exp (soft) > haste > crit > mastery works pretty well. Strength in reds, haste/strength in yellows and stam/strength or hit/strength in your blue sockets.
If you're having problems with dying just swap mastery and crit in your reforges. Further problems move it up again. And if you're still having problems start regemming.
The tank meta gem is actually fairly good popular to contrary belief but it's hard to give up anywhere from 10-12% single target damage from not using the DPS meta gem.
Always use RoTFC. Sword shattering gives 4% parry not effected by DR, while RoTFC parry is effected by DR. Even still you're looking at a good 2.5-3% parry from RoTFC and as blood the proc is going to be up pretty much all the time. Parry gained by RoTFC is obviously going to fluctuate, but it obviously has good synergy if you're using DPS trinkets to tank (which you should). 15% more strength on a 3-4 stack primordius talisman, feather or spark of the zandalar is quite a bit.
I just can't seem to want sword shattering at all. It's not that much more parry over RoTFC and there are other minor to substantial benefits to using it over SS.
We aren't in that bad of shape, but for 10 man you should start with DPS in mind and transition to tanking if it becomes a problem. With better gear you'll find yourself working towards that direction anyways. When we were doing heroic consorts back when the DPS check was fairly serious we couldn't seem to squeak out much more damage from the DPS classes we had. I didn't tank this boss during progression but it died when we focused more on tank DPS and healers contributing what DPS they could. Tank DPS does matter a lot and our protection paladin at the time (who was behind because he rerolled) could have been doing nearly 20k more DPS if had been up to date on the legendary chain and had the DPS meta.
25 man is probably completely different, so I won't comment.